However, this is my output:
1. φ, X belongtoT∀s∈T,(union)_{A∈S}A∈T
2.∀s∈T,sfinite,(intersection)_{A∈S}A∈T

If anyone can help me out here and tell me how to get the list as it should be (definition for a topology) I would really appreciation it - I'm new to LaTeX and am still trying to figure it out. Thanks.